Caption:
Friedrich Maria Albrecht Wilhelm Karl, Archduke and Prince Imperial of Austria, Prince Royal of Hungary and Bohemia, Duke of Teschen (In German: Erzherzog Friedrich Maria Albrecht Wilhelm Karl von Österreich-Toskana, Herzog von Teschen) - (4 June 1856, – 30 December 1936) was a member of the House of Habsburg and the Supreme Commander of the Austro-Hungarian Army during World War I.